Residents of the small mountain town of Caldwell, Washington grapple with the mysterious return of their dead loved ones. With no memory of their deaths, and no awareness of the time that has passed in their absence, the returned struggle to reintegrate into a world that has changed without them.

Victor's disappearance from the community center brings Julie and Nikki together to look for him. Tony makes a confession that has a profound impact on Adam and Helen suspects the town may be evil.

Lucy miraculously recovers from the stabbing but realizes she is irrevocably changed. Claire and Jack scramble to find Lena as she receives help from Adam. Peter makes a frightening confession to Victor.

Someone unexpectedly shows up and puts Chloe in danger. Peter makes a startling announcement and Helen sets her deadly plan for the town in motion.

Rowan and Tommy's celebration is overshadowed by a mysterious premonition. Julie makes Victor face his tragic past. Camille realizes she will never be normal and Helen's plan meets a mysterious end.